The order was passed by a bench headed by NGT Chairperson Justice Swatanter Kumar.
Advocates Lalit Mohini Bhat and Anuj Kapoor, appointed as amicus curiae in the case, told the NGT that more than 3,500 saplings have been planted in the Cantonment area.
"The officers concerned of the Cantonment Board shall ensure that all these plants are looked after well, at least for a period of five years and there are no tree casualties. The survival rate report will be filed before the tribunal after a period of six months.
The tribunal's order came on a plea filed by NDMC vice- chairman and former BJP MLA Karan Singh Tanwar against the Station Commander of Delhi Cantonment for allegedly cutting a large number of trees in the Nicholson range in the Inderpuri region of South West Delhi.
Tanwar had claimed that 25,000-30,000 trees of various varieties, including Mulberry, Pipal, Sagwan, Neem and Kikar, were chopped off in the ridge area.